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The rule few people know about: the ±30% tolerance under ANVISA RDC 6/2012
What counts within the tolerance
Why the weight of dirty linen confuses everyone
Soiling index is not a discount — it is a control
How much a weight dispute costs
| Operation | Disputes/month | Average credit | Monthly cost |
|---|---|---|---|
| 100 ton/month | 5-10 | R$ 800 | R$ 4,000-8,000 |
| 200 ton/month | 10-20 | R$ 1,200 | R$ 12,000-24,000 |
| 350+ ton/month | 20-40 | R$ 1,500 | R$ 30,000-60,000 |
Why manual processes almost always produce disputes
The specific case of wet weight with no clean-side record
How double digital weighing solves the problem
What changed at Nova Era
Checklist: is your laundry exposed to weight disputes?
- Is weighing recorded digitally with timestamp and operator?
- Do you weigh on intake (dirty) and on dispatch (clean)?
- Has your scale been calibrated by a national metrology authority within the past year?
- Do you have a contracted soiling index per client?
- When a hospital questions an invoice, can you produce the proof in under 1 minute?
- Can you prove compliance with the ±30% tolerance of ANVISA RDC 6/2012?